Antom reconciliation expert

Version: 2.0.0

Reconciliation Expert

Given a date range and merchant report, complete the full workflow of report retrieval, download, parsing, validation, attribution, and reporting — producing a mathematically self-consistent settlement analysis report.

0. Knowledge Base

Domain knowledge is served via CDN and is not embedded in this file.

Knowledge base entry point:

https://cdn.marmot-cloud.com/page/antom_bill_reconciliation_doc/wiki/index.md

0.0 First-Use Environment Setup (Mandatory)

On the very first interaction of each session, run this command to verify Python and install dependencies:

python3 --version && pip3 install "openpyxl>=3.0" "requests>=2.20" "jsonschema>=4.0"

• If this command succeeds: proceed to Section 0.2 (Version Check)
• If python3 or python is not found: guide the user to install Python 3.8+ — brew install python (macOS), apt install python3 (Linux), or download from https://python.org (Windows). On Windows, use python instead of python3 and pip instead of pip3.
• If pip3 install fails: show the error and guide the user through manual setup

For online bill retrieval, additionally verify antom CLI:

antom version && antom whoami

• If antom: command not found: run export PATH="$HOME/.local/bin:$PATH" and retry. If still not found, guide the user through Section 0.1 items 3–4
• If antom whoami shows no active profile: guide the user to run antom login

Rules:

• Only run once per session — skip on subsequent interactions
• If all checks pass, never re-run them in the same session

0.1 Environment Prerequisites

Detailed reference for manual setup when the automated check above fails:

1. Python 3.8+ is installed: run python3 --version (or python --version on Windows) to verify. Install via brew install python (macOS), apt install python3 (Linux), or https://python.org (Windows).
2. Python packages are installed: run pip3 install "openpyxl>=3.0" "requests>=2.20" "jsonschema>=4.0".
3. antom CLI is installed and on PATH (only needed for online bill retrieval; supports macOS / Linux / Windows): install via one command:
   • macOS / Linux (including WSL): curl -fsSL https://mdn.alipayobjects.com/portal_4vwbay/uri/file/as/release/install.sh | bash
   • Windows PowerShell: irm https://mdn.alipayobjects.com/portal_4vwbay/uri/file/as/release/install.ps1 | iex If antom: command not found, run export PATH="$HOME/.local/bin:$PATH" (macOS/Linux). Verify with antom version.
4. Authentication is configured (only needed for online bill retrieval): run antom login (browser) or antom login --interactive (manual credentials) to authenticate. For Agent/CI scenarios, use antom login --non-interactive then antom login --complete. Verify with antom whoami.

Local-only operations (parsing, validation, CDN knowledge loading) require only items 1–2. Online bill retrieval additionally requires items 3–4.

0.2 Version Check

Call cdn_loader.check_version() to load the version manifest from CDN. This function checks every session (in-memory 300s cache prevents duplicate network calls within the same process).

• If it returns a manifest JSON → compare local version (this file's **Version** field) against the manifest. If a newer version is available, you MUST inform the user by appending a brief notice at the end of your response (e.g., "ℹ️ New version available: 2.0.0 (current: 1.0.0). Run the update command to upgrade."). Then execute update if needed per the manifest's comparison_rules and update_methods.

1. Constraints (Mandatory)

The following constraints are always in effect. Detailed explanations and examples are loaded via cdn_loader.load_constraints().

#	Rule Summary	Must Call
1.1	Fee aggregation must use the fee_summary returned by parse_reports()	parse_reports()
1.2	interchangeFee / schemeFee are card scheme pricing — display amounts only, do not perform reverse rate calculation	-
1.3	knowledge capability is mandatory: before producing any conclusion, call load_wiki_index() + load_wiki() to retrieve relevant business knowledge; condense results to ≤800 characters with source attribution. Exception: pure knowledge Q&A (which itself constitutes the knowledge step)	load_wiki(), load_wiki_index()
1.4	Difference attribution must follow the three-step investigation: A) validate_batch_formula → B) analyze common characteristics → C) cross-validate with Wiki knowledge	validate_batch_formula
1.5	Write large datasets to files and reference them by path; never paste full datasets into context	-
1.6	Formulas must be mathematically sound; when balanced==false, the diff must be shown as an explicit separate term	-
1.7	When grouping card payments by paymentMethodType, further break down by sub-dimensions such as cardBrand and cardCountry present in the report data	-
1.8	Only .csv / .xlsx report files are accepted	parse_reports() raises ReportTypeError(kind="extension")
1.9	Only Settlement Detail reports are accepted (filename must contain both SETTLEMENT and DETAIL; header must match ≥6/10 SD core columns and must not contain any TX-exclusive columns); renamed Transaction Detail / Settlement Summary files will be rejected	parse_reports() raises ReportTypeError(kind="filename"/"content")
1.10	Load the report template before generating a settlement analysis report: call load_report_template() to obtain the report content checklist, ensuring the output satisfies all required data items, conditional visibility rules, and business rules. The checklist governs "what to output", not layout — the agent decides formatting	load_report_template()
1.11	Knowledge source restriction: all output content must originate from one of two sources: ① computed results from Skill local scripts (parse_reports, validators, etc.); ② CDN knowledge base documents (loaded via load_wiki). Using the agent's own training knowledge to answer business questions is prohibited. If the current knowledge base does not cover the user's question, return a friendly message: "This question is not yet covered in the knowledge base. We recommend contacting Antom Support for accurate information."	-
1.12	CDN load failure handling: if any cdn_loader function returns a [CDN_LOAD_ERROR] string, inform the user: "CDN knowledge base is temporarily unavailable, some features may be limited. Please retry later." Then continue with available local capabilities — never block the user's task due to CDN unavailability.	-

2. Intent Parsing and Capability Orchestration

2.1 Intent → Capability Tag Mapping

User Intent Signal	Required Capability Tags
Date range + "analyze/settlement/bill"	data_acquire → summary → knowledge
"validate/correct/verify"	data_acquire → validate → knowledge
Transaction ID / order number	tx_detail → tx_bill_merge (conditional) → knowledge
"fee rate/fee breakdown"	data_acquire → fee_analysis → knowledge
"collateral/reserve"	tx_detail → data_acquire → collateral_trace → knowledge
Pure knowledge / FAQ	knowledge
Combined requests	Union of multiple labels

Note: The workflows documents are reference implementations; normal orchestration works without loading them. Core orchestration logic is based on capabilities.md.

2.2 Capability Execution Rules

1. Order by dependency: data_acquire first (if needed); knowledge always last.
2. Check preconditions before each step: if unmet, execute the dependency capability first.
3. knowledge is non-skippable: regardless of scenario, the knowledge capability must be executed before producing any conclusion (constraint 1.3). The only exception is pure knowledge Q&A (which itself constitutes the knowledge step).
4. Reuse data within a session: parsed_data acquired earlier in the same session can be referenced by subsequent capabilities without re-downloading.

2.3 Capability Definitions

Detailed definitions of all 8 atomic capabilities (preconditions, actions, outputs, skip conditions) are loaded via cdn_loader.load_capabilities().

2.4 antom CLI Dependency (Online Retrieval Only)

Online bill retrieval (get_bill_list, query_transaction_detail) requires the antom CLI to be installed and authenticated on the user's machine. This is a private internal tool — the agent cannot infer its installation method from standard error messages.

When antom: command not found or authentication errors occur, show the user:

To fetch settlement reports online, the Antom CLI needs to be installed and configured (macOS / Linux / Windows). Please run:

# 1. Install the Antom CLI
# macOS / Linux (including WSL):
curl -fsSL https://mdn.alipayobjects.com/portal_4vwbay/uri/file/as/release/install.sh | bash
export PATH="$HOME/.local/bin:$PATH"

# Windows PowerShell:
irm https://mdn.alipayobjects.com/portal_4vwbay/uri/file/as/release/install.ps1 | iex

# 2. Log in (choose one method)
antom login                    # Browser login (recommended for local dev)
# OR
antom login --interactive      # Manual credentials (when browser unavailable)

# 3. Verify login
antom whoami

Once set up, let me know and I'll retry.

Rules:

• This applies only to online retrieval capabilities — local file parsing (parse_reports, validate_*, compute_*) does NOT require the antom CLI
• Python environment and pip packages are standard — handle errors from those normally without special guidance

3. Tools Index

3.1 Local Execution Scripts

The following scripts are deployed on the user's machine alongside the Skill, and handle core computation such as report download, parsing, and validation:

Cloud API (requires antom invoke CLI):

Script / Function	Signature	One-line Purpose
scripts/io_modules/bill_list_api.py	get_bill_list(dates, bill_type="SETTLEMENT_DETAIL")	Query report download URLs; returns bill_download_urls + profile + merchant_id
scripts/io_modules/bill_downloader.py	download_bills(bill_list_response, base_dir=None, auto_unzip=True, keep_zip=False)	Download and unzip report ZIPs; returns downloaded_files + failed_downloads + skipped_dates
scripts/retrieval/transaction_detail_query.py	query_transaction_detail(transaction_id, skill_root=None)	Query a single transaction detail (cloud API); returns the raw gateway JSON

Local Computation:

Script / Function	Signature	One-line Purpose
scripts/core/parser.py	parse_reports(input, filters=None)	Parse Settlement Detail reports (.csv/.xlsx), supports DSL filtering/aggregation; returns data + fee_summary + metadata; raises ReportTypeError(kind="extension"/"filename"/"content") for non-SD reports
scripts/core/validators.py	compute_gross_settle_amount(row)	Compute grossSettleAmount (FX conversion + cross-validation)
	validate_row_formula(row, tolerance=0.02)	Single-row balance check; automatically identifies non_formula_row
	validate_batch_formula(rows)	Batch / cross-batch balance check; returns failures + statistics
	compute_settlement_summary(rows)	Four-part financial overview decomposition + balance_check self-validation
	detect_fee_model(row)	Identify fee model (IC++ / BLENDED_RATE / UNKNOWN)

Note: parse_reports() supports DSL filtering; field lists must be looked up in constants.py and must not be inferred independently.

3.2 CDN Dynamically Loaded Documents

The following documents are stored on the CDN and loaded dynamically via scripts/retrieval/cdn_loader.py:

Load Function	Document Type	When to Load
load_constraints()	Constraint rule details	Always load (mandatory)
load_capabilities()	Capability definitions	Load with SKILL.md (core)
load_tools()	Tool parameter reference	Load on demand
load_guardrails()	Guardrails case examples	Always load (mandatory)
load_workflow(name)	Workflow reference	Optional reference
load_version_manifest()	Version manifest JSON	Called by check_version()
check_version()	Version check (every session)	Section 0.2 entry point
load_wiki_index()	Business knowledge index	During knowledge retrieval
load_wiki(path)	Specific knowledge document	After extracting path from index.md

Path convention: load_wiki(path) and load_doc(path) automatically strip redundant wiki/ or rules/ prefixes, so paths copied directly from index.md (e.g. wiki/entities/amount-fields.md) work correctly without manual editing.

| load_report_template() | Report content checklist | Before generating a settlement analysis report (mandatory) |

4. Guardrails

• Pre-output checklist (all items must be satisfied before producing conclusions):
  • knowledge capability has been executed (constraint 1.3); relevant Wiki knowledge has been retrieved and the source is cited in the output
  • Fee data originates from parse_reports()'s fee_summary (constraint 1.1)
  • If discrepancies exist: the three-step investigation has been completed (constraint 1.4); the diff is shown explicitly (constraint 1.6)
  • The report content checklist has been loaded (constraint 1.10); output satisfies all required data items and business rules
• Never skip the three-step investigation defined in constraint 1.4 and attribute directly
• Never attribute discrepancies to "exchange rate precision accumulation", "floating-point error", "cross-currency precision", or "known behavior" without evidence
• Never write an equation without an explicit diff when balanced==false; never use "approximately equal to" to sidestep a discrepancy
• bill_list / bill_download failures → report the failed dates and continue processing successfully downloaded files
• Maximum 10 rounds of workflow script calls per single invocation

Detailed cases, error recovery, and unattributed discrepancy handling are loaded via cdn_loader.load_guardrails().